Combination driving mechanism and differential.



P; G. LEDEBOBR. GOMBINATIGN DRIVING vIKIEGBANISIII AND DIFFERENTIAL.

Y APPLIGATION FILED 11113.11; 1911. v 1,030o97.

Pafented June 18, 1912.

U TED ATE@ Pitti-ENT @hlfim :PETER G. LEDEBOER, OF CHICAGO, ILLINOIS.

COMBINATION DRIVING MECHANISM AND DIFFERENTIAL.

Speeication of Letters Yatent. Patented Juin@ d, 1.912.,

Application filed March 11, 1911. Serial No. 613,858.

Y primaryv object -is to provide one which will obviate the necessity ofthe usual two-part rear axle and its differential' mechanism. y

A further object is f to accomplishv the above result byapplying thepower directly against levers instead lof through the usual pawlsystems, the lat-ter having been found to be ineiiicient and liable tofrequent breakage.

A .further object of my invention is to provide means whereby the parts,after en gagement to drive the wheels in one direction, may be lockedtogether and prevented from reversal.

n With these and other objects in view, my invention resides in thefeatures of construction, arrangement and operation to be hereinafterdescribed with reference to the accompanying drawing, forming a part ofthis specification, and in vvhich--` Figure 1 is a view partly inelevation and partly in section, taken on lino 1-1 of Fig.V

2. Fig. '2 is acentral vertical section taken on the line 2--2of Fig. 1.Fig. 3 is a detail section taken on line 3 3.; of Fig'. 2, and Fig. 4 isa detail section through one of the buttl stops, showing its springplunger,

and on an enlarged scale. v

Referring now to thesefigures, 5 represents the hub portion of a wheel,mounted to rotateI upon' one vend of the shaft or axle 6.' To the innerside of the hub is secured a circular frame 7, Vsurrounding shaft oraxle 6, and embodying an internally toothed ring8. v 'Mounted upon theshaft 6, within' frame 7, is a support which comprises a hub portion 9and a disk 10, adjacentto the edge'of the latterof which are pivotallymounted lever carrying members 11 and 12, these members being connectedto said disk at their oiiter ends, by pivot bolts 13 so that their innerends may swing in opposite directions. lrvotally mounted, at their innerends, upon the 4lever carrying members 11 and 12, are

-levers 14. and 15, whichhoutstand in oppo` site directions and areadapted for engagement with the toothed ring'8when the members 11 and 12are moved tc either side of their central position; the action of theselevers 111' and'15 in engaging t-he ring A8,

being similar to. that of a pawl. From this` it will be readily seenthat as the wheel and the frame 7 are idle, they may at any time stravelat a greater'spefe'd than that of the driving means to be hereinafterdescribed,

thus providing for .the travel of the outer wheel at'agreater rate ofspeed than the inner wheehin turning a corner.

The hub portion 9 of the support before described, is provided with asegmental projection 16,. adapted for engagement within an enlargedsegmental recess 17 in a member .18 sleeved upon said hub portion 9,this member 18 having teeth 19 in engagementwith teeth 20 upon the innercurved ends of the lever carrying members 11 andn12.

This sleeve 18 also carries a sprocket Wheel or other memberl 21 towhich power is applied from the motor of the vehicle, either direct orthrough a counter-"shaft. rThus Y' i when power is transmitted tor thesleeve 18 to rotate the same ina direction shown by the arrow in Fig. 1,it willcause rocking movement of the lever carrying linfembers 11 and 12tol engage theUe-'ves u1."rfwith"the` toothed ring 8, before the endfofthe recessj 17 of said sleeve strikes the hub projection 16 of thesupporting disk 10. The levers 14 and 15 are yieldably-'g'uided intoenga-ge'- ment with the toothed ring 8 by springs 22, pressing the samelin one. rdirection and .spring plungers 23 pressing the same in theopposite direction, said spring plungers'23 being mounted,. asparticularly shown in Fig. 4, within butt stops 247,*formed integralwith disk 10, and located'upon the inner sides of the levers 14 and 15,-so that when the levers are engaged asbefore described and disk 10caused to rotate` the levers 15 form a hearing between the disk 10andthe frame f,-a,.f1:ainst which the corresponding butt stops 24engage, thus forcing rotation of the frame 7 alud of the wheel.

This collar 26 has a circular Y1.05 The hub 9 of the supporting disk 10is` versal of the levers 14 and 15, collar 26 is moved to the positionshown in Fig. 2, and

as soon" as the sleeve 18 starts to move asbefore described, theapproach of one end of its recess 17 toward the` hub projection 16,enlarges the space upon the op osite side of the said projection, intowhlc the corresponding one of the lugs 30 and 31 is immediately.projected spring 33, thus locking the hub 9 and sleeve 18 againstrelative movement necessary to reverse the levers 14' and '15,-a`sbefore de'- scribed. Thus' it will be seen that Iaccomplish the objectsfirst stated, by simple and etleieiit means which willbe `strong andlasting in use. Y

Iclaim:l 1. The combination-with a wheel and its shaft, of a frame secuhaving a toothed rin leversl movable to engage t-he toothed ruig, a suport upon which said levers are mounted), a `driveli member havingconnection with said levers, connections' between said driven member andsaid support to drive the latter and permit relative movement thereof,and means to lock said driven member and said support against relativemovement, said means being movable to and from an operative po.

sition.

l '2. The combination of a member to be driven, and its shaft, saidmember including a toothed ring, pawls engageable with the toothed ring,a pivoted member carrying the pawls, a support for the pivoted member, adriving member operatively connected to the pivoted member to swing thesame and eifeot engagement of the pawls withthe toothed ring, and stopsou the support adjacent to the teeth of the ring, sald stops beingcngageable withthe pawls when the latter engage the teeth of the ring.

3. The combination of a member to be. driven, and its shaft, said memberincluding a toothed ring, pawls engageable with the toothed ring, apivoted member carrying the pawls, a support for the pivoted member, adriving member operatively'connected tothe pivoted member to swing thesame y Vmeans of a.

to the wheel and ,and effect engagement ofthe pawls with the toothedring, stops on the support adjacent gageable witlrthepawls when thelatter engage the teeth of the ring, and spring plun- Ato the teeth ofthe ring, said stops being enj gers carried by said stops'and4projectingy I -therefrom into engagement with the pawls.

4. The combination of a member to be.

the toothed ring, a pivoted member carry-A ing the paw1s, a support forthe pivoted member, a drivmg member operatively connected to thepivo-ted member to swing the [same and e'ect engagement of the pawlswith the toothed ring, and a lock to prevent.

reverse motion of the driving member after the pawls have engagedthetoothed ring.

5. The combination of a member to be driven, and its shaft, saidmemberincludi ing a toothed ring, pawls engageable with1theto0thed,ring,a pivoted member carrying the pawls, .a support ,forthepivoted q member, a driving member operatively connected to the pivotedmember tqgswing the same and .effect engagement 'of the pawls with Vthetoothed ring, and a lock to'prevent reverse motion' of the drivingmember after the pawls have engaged the toothed' ring,

said lock being adjustable intoinoperative- 6. The combination of a,member tothe driven, and its shaft, said member including a `toothedring, pawls engageable with r9.5 "the toothed ring, a pivotedmembertowhich' y the pawls 4are pivoted, a Osupport for the` pivotedmember, said support I a sleeve loosely mounted on the hub, a drivingmember mounted on the sleeve,.and a' gearing between thesleeve andtheaforesaid pivoted member carrying the pawls.

7. The combination of a member to be driven, and its shaft, said member.including a toothed ring, pawls engageable with the toothed` ring, apivotedmember carrying the pawls, a support for the pivoted member, saidsupport having a'hub provided with a lug, a driving member opera-vtively connected to the ivoted member car avinga hub,

-i-os rying the pawls, said riving 'member having a recess to receivethe aforesaid lug, the v latter fitting loosely in the recess, and alocking device adapted yto be inserted into the recess behind the lug toprevent reversal of the driving member.

In testimony whereof I affix my signature in presence of two witnesses.j

. PETER G. LEDEBOER. Witnesses:

MYaoN Gr. CLEAR, ANNA M. MENGEL.

